contrib.url(type = 'mac.binary')

Jeroen,

yes, you're right, that is incorrect. It should read "binary" as that is the only value that automatically picks the correct binary repository for the current R build regardless of platform. Or it should say "mac.binary.big-sur-x86_64" corresponds to bin/macosx/big-sur-x86_64/contrib and "mac.binary.big-sur-arm64" to bin/macosx/big-sur-arm64/contrib since the rule is "mac.binary[.XXX]" corresponds to bin/macosx[/XXX]/contrib and thus "mac.binary" is bin/macosx/contrib which has been used for the high-sierra build, but is not correct for the (current) big-sur builds. The user shouldn't really be manually specifying the build name, so that's why I'd not mention "mac.binary" and only point to "binary" as that is what users should be using.

Cheers,
Simon

On Nov 12, 2024, at 3:38 AM, Jeroen Ooms <jeroenooms at gmail.com> wrote:

The R-admin manual section 6.6 talks about "mac.binary" to refer to
macos binary packages but I don't think this is working. On R-4.4.2:

 contrib.url(repos = 'https://cran.r-project.org', type = 'mac.binary')
 # "https://cran.r-project.org/bin/macosx/contrib/4.4"

This URL is 404 because it is missing the /big-sur-arm64/ dir in the
path. For the same reason we get an error:

  install.packages('MASS', type = 'mac.binary')

I think in practice only type = "both" currently finds the correct
binary packages?

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